Transaction not yet indexed

Nkf3UK6gnGHP6b7CRw4xd8yLc3dEagRmFaVAsAShhEqBocuay3xX3TAuXwTLTEQPnSYcxvkLueo4kJvyfEpVQka

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.